How Much Boost and for How Long

[only90s]

Those of you that run boost

How many lbs are you running?

and

How long have you been running it?


I am a firm believer in anything 10lbs or lower will last. I am on my 4th boosted season with my stock blocked S trim and she runs better than ever. I am considering swapping out the 3.33 pulley for a 2.95 so I will see closer to 14lbs, but I think that will finish the motor off..still tempting as that should put me over 500rwhp ...

Of course if I swap pulleys I would also change my MAF and go from 42s to 60lb injectors.

Decisions....Decisions...

[lxfiveo]

It's all relative to what you are boosting. Your 10#'s on a stock block may cause more wear and tear than the 17#'s I run on an 88mm with a fully built A4 motor. I've never had any damage to my motor from running pump gas and 17#'s...even have a couple of nine second time slips with that level of power. Now at 28# I MAY (and I caution MAY) have blown some shit up! lol

[96SLOBRA]

I've been at 8psi now for about 4 years on the stock block with no major problems yet. But I never rev over 6,600 rpms just to be safe.

[gtmustang00]

I've been at 8psi now for about 4 years on the stock block with no major problems yet. But I never rev over 6,600 rpms just to be safe.

Do you beat on it or race it? I'm wanting a d1sc for my 98 but i'm kind of worried.

[MY-S281]

Been Running 9 to 10psi now for 3 full seasons, Stock block,
KB went on at just about 105K.
I will pass 135K before the Saleen is put away for the season !

30K in hard miles making 10psi , no complaints from me even if I was to blow up at this point ~

[slammit06]

9lbs for the last two years on the stock block and the car has seen some track time!! 432/391 uncorrected 420/381 politcaly correct lol..

[TorchRedSVT]

15 psi here.......this is my second year with the set up and no issues except for the fact I can't seem to find a belt that doesn't squeal.

p.s. Raul....keep that 98 stock brother...too nice of a car to start bolting on blowers

[only90s]

15 psi here.......this is my second year with the set up and no issues except for the fact I can't seem to find a belt that doesn't squeal.

p.s. Raul....keep that 98 stock brother...too nice of a car to start bolting on blowers

15psi WOW that is alot of boost. Is that what most of the Terminators run with a pulley change.?

[lxfiveo]

15 psi here.......this is my second year with the set up and no issues except for the fact I can't seem to find a belt that doesn't squeal.

You don't count...my dead grandmother drives harder than you!!!! lol

[SVT10th]

15psi WOW that is alot of boost. Is that what most of the Terminators run with a pulley change.?

Here's a table showing various pulley configs and the amount of boost they produce. I believe Ian's setup is a little more aggressive than the "usual" 2.93" upper pulley-only swap.
http://stangshiftergaskets.com/2003_...m#_Toc35092361